package jdbc;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Scanner;

public class JDBCLogin2 {
    public static void main(String[] args) {
        Scanner scanner=new Scanner(System.in);
        try (Connection connection = DBUtil.getConnection();){
            System.out.println("请输入用户名：");
            String username=scanner.nextLine();
            System.out.println("密码：");
            String password=scanner.nextLine();
            String sql = "select * from userinfo where username=? and password=?";
            PreparedStatement ps = connection.prepareStatement(sql);
            ps.setString(1,username);
            ps.setString(2,password);
            ResultSet rs = ps.executeQuery();
            if (rs.next()){
                String nickname=rs.getString("nickname");
                System.out.println("登录成功，欢迎您:"+nickname);
            }else {
                System.out.println("用户名或密码错误");
            }
        }catch (SQLException e){
            throw new RuntimeException(e);
        }
    }
}
